Main Window Layout treeview item

[qwerty1234]

Hi folks

I am having a bit of difficulty trying to get a treeview model to appear on my main window. I can get a blank treeview to appear but I want it to be used as a file directory and do not know how to link the blank treeview in my window to my directory model.

I can create a suitable file directory on it's own dialogue box but I'm struggling to get it to link with my blank treeview in the main page.

This is the code I use for making the working treeview directory in it's own dialogue box in the main.cpp.

QFileSystemModel *TreeModel = new QFileSystemModel();
     TreeModel->setRootPath("/Users/John/Documents");
     QTreeView tree;
     tree.setModel(TreeModel);
     QModelIndex idx = TreeModel->index("/Users/John/Documents");
     tree.setRootIndex(idx);
     tree.show();

QFileSystemModel *TreeModel = new QFileSystemModel();
     TreeModel->setRootPath("/Users/John/Documents");
     QTreeView tree;
     tree.setModel(TreeModel);
     QModelIndex idx = TreeModel->index("/Users/John/Documents");
     tree.setRootIndex(idx);
     tree.show();

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For the mainwindow.cpp

MainWindow::MainWindow()
 {
 
QWidget *widget = new QWidget;
     setCentralWidget(widget);
 
QWidget *rightFiller = new QWidget;
     rightFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
QTreeView *tree = new QTreeView;
 
 
QHBoxLayout *layout = new QHBoxLayout;
 
     layout->addWidget(tree);
     layout->addWidget(rightFiller);
     widget->setLayout(layout);

MainWindow::MainWindow()
 {

QWidget *widget = new QWidget;
     setCentralWidget(widget);

QWidget *rightFiller = new QWidget;
     rightFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

QTreeView *tree = new QTreeView;


QHBoxLayout *layout = new QHBoxLayout;

     layout->addWidget(tree);
     layout->addWidget(rightFiller);
     widget->setLayout(layout);

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Any advice would be greatly appreciated in helping me get this sorted

---

Added after 38 minutes:

Got it working. The mainwindow.cpp now looks like

MainWindow::MainWindow()
 
      QWidget *widget = new QWidget;
      setCentralWidget(widget);
 
      QWidget *rightFiller = new QWidget
      rightFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
      QFileSystemModel *TreeModel = new QFileSystemModel();
      TreeModel->setRootPath("/Users/John/Documents");
      QModelIndex idx = TreeModel->index("/Users/John/Documents");
 
      QTreeView *tree = new QTreeView;
      tree->setModel(TreeModel);
      tree->setRootIndex(idx);
 
      QHBoxLayout *layout = new QHBoxLayout;
      layout->addWidget(tree);
      layout->addWidget(rightFiller);
      widget->setLayout(layout);

MainWindow::MainWindow()

      QWidget *widget = new QWidget;
      setCentralWidget(widget);

      QWidget *rightFiller = new QWidget
      rightFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

      QFileSystemModel *TreeModel = new QFileSystemModel();
      TreeModel->setRootPath("/Users/John/Documents");
      QModelIndex idx = TreeModel->index("/Users/John/Documents");

      QTreeView *tree = new QTreeView;
      tree->setModel(TreeModel);
      tree->setRootIndex(idx);
   
      QHBoxLayout *layout = new QHBoxLayout;
      layout->addWidget(tree);
      layout->addWidget(rightFiller);
      widget->setLayout(layout);

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Will probably be back soon enough asking for more help